Advantech ECU-1051TL - Connectivity and Configuration; Communication PIN Assignments; Jumper Setting

ECU-1051TL Startup Manual 3
Communication PIN Assignments
RS-232/485 Serial Ports (Pin Assignments)
Pins 1
2 C-GND
RS-232 Tx
Rx GND
RS-485
Data+ Data- GND
Figure 4. Jumper Location
Serial Ports (RS232/RS485)
CN9(COM1) / CN10(COM2)
RS232 mode (3-5)
(4-6)
RS485 mode, No Terminator (1-3)
(2-4) Default
Jumper Setting